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Convert ArrayList to Array

In this section, you will learn about converting ArrayList to Array.

Convert ArrayList to Array

In this section, you will learn about converting ArrayList to Array.

Array is a data structure having fixed size which stores same type of elements in sequential manner. While ArrayList ,extends AbstractList and implements the List interface , supports dynamic array which can grow in size .

Situation comes when you have data in a ArrayList and you want to covert it into array. You can do this using toArray function as shown below :

import java.util.*;

public class ConvertListToArray {
	public static void main(String args[]) {
		List<String> statelist = new ArrayList<String>();
		String [] states = statelist.toArray(new String[statelist.size()]);
		System.out.printf("States Array:\t\t%s", Arrays.toString(states));


States Array:  [UP, Bihar, Delhi, Kolkata]


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Posted on: February 4, 2013

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